What is meant by Jesus as the author of eternal salvation?

In Hebrews 5:9, it is stated that being made perfect, Jesus became the author of eternal salvation to all who obey Him. This signifies that His sacrifice and the salvation He provides are not temporary or conditional but everlasting. Eternal salvation implies that once a believer is justified by faith in Christ, they are secured in their salvation forever. This assurance is foundational to Reformed theology, emphasizing that salvation is a work entirely orchestrated by God, from election to glorification (Romans 8:30). Thus, believers can rest in the guarantee of their eternal standing before God through Christ.